The single image tabs, CSS only with three state rollover, almost perfect one.
I have to say "almost prefect" as it uses SPANS, if someone can "reduce" (remove) spans please let me know.
Note:The "Space" background [...]

Single Image Sliding Doors and Rollover
In progress ... My initial CSS code was rewritten.
Below is rewritten version by "deathshadow".
This version should work on all modern browsers.
My original top menu version [...]